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Desa ROPANE CONSTRUCTION HEATERS manual

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Table of contents for the manual

  • Page 1

    ! GENERAL HAZARD WARNING: FAILURE TO COMPLY WITH THE PRECAUTIONS AND INSTRUC- TIONS PROVIDED WITH THIS HEATER, CAN RESULT IN DEATH, SERIOUS BODILY INJURY AND PROPERTY LOSS OR DAMAGE FROM HAZARDS OF FIRE, EXPLOSION, BURN, ASPHYXIATION, CARBON MONOXIDE POISONING, AND/OR ELECTRICAL SHOCK. ONLY PERSONS WHO CAN UNDERSTAND AND FOLLOW THE IN- STRUCTIONS S[...]

  • Page 2

    2 099162 Safety Information ......................................................................... 2 Product Identification .................................................................... 4 Unpacking ...................................................................................... 5 Theory of Operation .................................[...]

  • Page 3

    3 099162 SAFETY INFORMA TION Continued ! W ARNINGS Propane Gas: Propane gas is odorless. An odor-making agent is added to propane gas. The odor helps you detect a propane gas leak. However, the odor added to propane gas can fade. Propane gas may be present even though no odor exists. Make certain you read and understand all Warnings. Keep this manu[...]

  • Page 4

    4 099162 PRODUCT IDENTIFICA TION Generic LP 155 LP-PFA/PV 008B Hot Air Outlet (Front) Handle Fan Guard Upper Shell On/Off Switch Power Cord Hose /Regulator Assembly Inlet Connector Figure 2 - 150,000 BTU/Hr Model Generic LP 45 & 80 LP-PFA/PV 008A Fan Guard Handle Lower Shell Power Cord Hose /Regulator Assembly Inlet Connector On/Off Switch Hot [...]

  • Page 5

    5 099162 45/80 LP SIDE LP-PFA/OV 001A Air For Combustion And Heating Fuel Combustion Chamber DSI Nozzle Figure 3 - Cross Section Operational View (80,000 BTU/Hr Model Shown) Clean Heated Air Out (Front) Cool Air In (Back) THEOR Y OF OPERA TION The Fuel System: The hose/regulator assembly attaches to the propane gas supply. The propane gas moves thr[...]

  • Page 6

    6 099162 PROP ANE SUPPL Y Propane gas and propane tank(s) are to be furnished by the user. Use this heater only with a propane vapor withdrawal supply system. See Chapter 5 of the Standard for Storage and Handling of Liquefied Petroleum Gas, ANSI/ NFPA 58 . Your local library or fire department will have this booklet. The amount of propane gas read[...]

  • Page 7

    7 099162 Generic LP 45 & 80 LP-PFA/P 023 3. Connect hose to inlet connector. Tighten firmly using a wrench. IMPORTANT: Extra hose or piping may be used if needed. Install extra hose or piping between hose/regulator assembly and propane tank. You must use the regulator supplied with heater. 4. Open propane supply valve on propane tank(s) slowly.[...]

  • Page 8

    8 099162 To Start Heater 1. Follow all installation, ventilation and safety information. 2. Locate heater on stable and level surface. Make sure strong drafts do not blow into front or rear of heater. 3. Plug power cord of heater into a three-prong, grounded extension cord. Extension cord must be at least six feet long. Extension cord must be UL li[...]

  • Page 9

    9 099162 MAINTENANCE ! W ARNING Never service heater while it is plugged in, connected to propane supply, operating, or hot. Severe burns and electrical shock can occur. 1. Keep heater clean. Clean heater annually or as needed to remove dust and debris. If heater is dirty or dusty, clean heater with a damp cloth. 2. Inspect heater before each use. [...]

  • Page 10

    10 099162 LP-PFA/P 019B 45/80 Models FAN CROSS SECTION LP-PFA/P 013 FAN LP-PFA/P 023 SERVICE PROCEDURES Upper Shell Removal 1. Remove screws along each side of heater using 5/16" nut-driver. These screws attach upper and lower shells together. 2. Lift or slide upper shell off. 3. Remove fan guard. Fan Motor Figure 7 - Upper Shell Removal, 150,[...]

  • Page 11

    11 099162 LP-PFA/P 019A 150 Model Air Sensing Switch (80,000 BTU/Hr Model) 1. Remove upper shell (see page 10). 2. Clean air sensing switch paddle. Use soft cloth moistened with kerosene or solvent. IMPORTANT: Do not scrub. Use gentle cleaning action. Do not bend paddle or paddle arm. 3. Blot paddle dry with a soft cloth. 4. Replace fan guard and u[...]

  • Page 12

    12 099162 7. Replace spark plug into combustion chamber. Tighten spark plug mount- ing nut finger tight onto spark plug threads. Use 11/16" socket to hold spark plug mounting nut. Tighten spark plug to spark plug mounting nut using 13/16" spark plug socket. 8. Attach spark plug cable to spark plug. 9. Replace fan (see page 10). 10. Replac[...]

  • Page 13

    13 099162 WIRING DIAGRAMS 80,000 BTU/Hr Model Electrical Connection Diagram Motor Air Switch Black Black Black Black Green/Yellow Flame Sensor Spark Plug Terminal Board Green/Yellow Ignition Cable Direct Spark Ignitor White White Orange White Green 120 VAC On/Off Switch Solenoid Valve Red Ground Neutral Sensor Thermostat Main Valve Main Valve Retur[...]

  • Page 14

    14 099162 WIRING DIAGRAMS 150,000 BTU/Hr Model Electrical Connection Diagram Power Cord 120 VAC Motor Green Solenoid Valve L or 1 M or 3 S or 2 Red On/Off Switch Safety Control G V VR ACR AC Black Black White Green White Black Black Black White Blue Blue Blue Blue Insulated Connector Thermal Switch Orange Green Ignitor Fuse (If Equipped) Relay Posi[...]

  • Page 15

    15 099162 ACCESSORIES Purchase accessories and parts from your nearest dealer or service center. If your dealer or service center can not supply an accessory or part, either contact your nearest Parts Central (listed in the separate Authorized Service Center booklet) or call DESA International’s Parts Depart- ment at (502) 781-9600. You can also [...]

  • Page 16

    DESA International warrants this product and any parts thereof, to be free from defects in materials and workmanship for six (6) months from the date of first purchase when operated and maintained in accordance with instructions. This warranty is extended only to the original retail purchaser, when proof of purchase is provided. This warranty cover[...]